Machine for making grains or flakes of powder.



PATENTED JUNE 19; 1906. 0. DOBBS & J. R. PITMAN.

: MACHINE FOR MAKING GRAINS OR FL'AKES OF POWDER APPLIGAVTION FILED JUNE29. 1905.

" myezs'mz. PATENTED JUNE 1 1906'.

I y DOBBS &YJ'. R. PITMAN.

' MACHINB'POR MAKING- GRAINS OR FLAKESU 0P POWDER.

APPLICATION FILED JUNE 29.1905.

5 SHEETS-SHEET 2.

fnverdbrsr I i 1914a,

No. 828,672. PATENTED'JUNE 19, 1900.

0. DOBBS & .PITMAN.

MACHINE FOR MAKING GR 0R FLAKES-OP POWDER.

' A IIIIIIIIIIIIIIIIIII 29.1905. I

l) SHEETS EEEEEEE 4,

PATENTED, JUNE 19-, I906.

0. DOBBS & J. R. PITMAN.

MAKING GRAINS 0R PLAKES APPLIOATIONIILBD JUNE 29. 1905.

OF POWDER.

MACHINE FOR 5 SHEETSSHEET 5.

' outlossofmaterial. a

We first describe the embodiment ofgour To all w'homit may concern.-

: Christies DoB'Bs AND, Jon-N RI PITMAN, .oFHA'sKEL-L, NEW JE SEY;ASSIGNORS TO THE E. rnuron'rnn NEMOURS ,PoWnER'oo PANY, or WILMINGTON;DELAWARE, a CORPORATION. or NEW JERSEY;

"MACHINE-FOB agma eaiamsoRF 'AK E s oF Powos fqi s esaw.

' Be it known that we, CHA LES 'DoBBs and; JOHN .R. PITMAN, citizens ofthe United States, residin at Haskell, county of Passaic,

and State of new and useful Im rovement in Machines for Makin Grains orlakes of Powder,'o f which the fo owin is a full, clear, andexact'description, re erence being had to-the'accome panying drawings,which form a part of'this specification.

duction of a machine whereby grains or flakes grainofpowder. V g

I a is the frame of the machine; I), the feeding-table having theguides'c, each: of which is adjustably secured in slots d by' means ofthe screws e.

ffare apair of powder, prefer'abl in polygonal form, may

readily, rapidly, an properly be madewith invention illustrated in theaccompanying drawin theclaims. I 7 1 v In the drawings, Figure 1 is a,side .elevation of ;the. machine. J-Fig. 2 is a plan' yiew with portionsof the top removed. Fig-Bis a"; central longitudinal sectional view.Fig; 4 is a transverse sectional view on thelinei ie,

Fig. 3. Fig. 5 is an enlarged plan viewof the cutters. Fig. 6 is across-sectional view on the line 6 6, Fig. 5. a Fig. 7 is a plan view ofa detail of the cover lo'cking arrangement; Fig. 8 is asectionalviewshowing several of the cuttin edges or teeth. Fig. 9 is a similar view soWing-ashifted position ofthese cutters or teeth; Fig.10is' anelevationof a flake or grain of powder enlarged about five diameters.Fig. 111's an elevation of a powder sheet, showing the manner of makingthe cuttings for this particular-shape flake or On thebed of the'machine is the plate'h,hav ing the projections 45, which enter'thespaces ew Jersey, have invented a.

gs and then point out the invention i'n' of feedin mounted in I ,theframe a. These'rolls avethe collarsg.

.doyvn-and then-the cover 15, the

. through v each of. a bolt m, I se-- through orifices in' the platehand have the headsn.

ois the main shaft, driven by the pulley and have their teeth or cuttingedgessta'g-i I Patented iune I cured to the machine. These bolts alsopass is thief gered withreference to each other. Uponffio the outer endof the shaft 0 isthe gear t,-meshing with the gear to on the shaftv. Onthis; shaft fl) is the gear w, which meshes with the,

gear a: on shaft y. On the shaft-y is'the ear -z, which meshes withthegear 1 on the s aft of the'lower roll f. This'gear lfmeshes with thegear 2, whichin turn meshes with the. gear 3. The gear 3 meshes with thegear 4, q

the bearin over thelrolls' f This gear 4-meshes with the gear 7';Wl1i(-3 has itsbearing on the for'which is on the axis of'the 1 I hin e5' of t e cover 6, which when'closed ex-.

7 vten cover-6. The iast-mentioned'gear 7 meshes r with the gear 8" onthe shaftof the upper roll f; Upon the shaft 0 is the bevel-gear 9,which meshes with the bevel-gear 10, ofthe'same.

size as gear 9 onthe shaft 11, sup orted in bearings 12 from themachine.

eccentric-strap 14 with the plate y'. The ecpon this shaft 11 is theeccentric 13, connected by the 8o centric is so set that the plate'j-isat rest when 7 the cutters 1' and s are coacting with thenonrotatin cutter 7c and between these periods moves ong'itudinally ofthe rolls first in one i 5.' 1 1,5 is the cutter-covenhinged at 1.6 and2 J l having a cut-away portion forming a. proj'ec ti0nf1=7 Upon thecover 6 is a projection 18.

The covers 6 and 15 are each provided ,with a' direction and then in theother.

handle 1 9. i Upon the end of themachine is the upright 20, carryingthebarrel-21, containing the spring-pin 2 2, which when the cover 15 isclosed is in line with an orifice .or detent 23 'thereinr In'practicethe cover 6 is first closed projection 17 on cover 15 then overl epro'ection 18 on-T'cover 6, The spring-pin 22 is t en waved o enterthe'detent 23. g

gon. After this cutting the plate j recipro I in'g timed in thehalf-revolution of shaft 0 to move the grains or flakes.

the plate 9' will reciprocate twice in one revorolls between theone-half of'the polygonal grain or flake, the

in 9, so that when it coacts with the cut ters 8 a reverse semihexagonalcut is made,

Beneath the cutters is the hopper 24, through which the flakes or grainspass to a .rece tacle.

T eo'peration of the machine is as follows: The sheet of powder isplaced upon the table between i the guides and started between therolls, which feed it forward. The cutting edges k and-r first coact (seeFig. 8) to cut cutting edges in the form shown being semi-- hexagonal,althou h we do not intend to limit ourselves to this particular form ofpolycates, bringing into action the portion shown (see Fig. 9,) themovement of the rollers ,be

powder strip the distance or width of the hexagon. 11 is showndiagrammatically the ct or strip of powder is cut up into By thisconstruction, as may be seen, there is no wasta e of powder, allof thestrip being cut into fla es or grains. While we have shown two cuttingedges 1 and s, we do not intend to limit ourselves to that number, as itis evident that a greater number may be used. If four be used, it isonly necessary to gear the connection of eccentric shaft to the shaft 0two to one, so that of one-hal InFi way a she lution of the shaft, setthe cutting edges 1 and s at quadrant (ninety degrees) a art, and causethe rolls f to travel twice as Iast.

Having now ll" described our invention, what we claim, an desire toprotect by Letters Patent, is- 1. In a machine for forming owder grainsor flakes, the combination, w1t feed-rolls of a plurality of rotatingcutters, the cuttin edges of pairs of cutters being staggers withrespect to each other, a non-rotatable cutter coacting therewith andmeans to reciprocate said non-rotatable cutter.

2. In a machine for forming powder grains or flakes, the combination,with feed-rolls of a plurality of rotating cutters, the cuttin edges ofpairs of cutters being staggere with respect to each other, anon-rotatable cutter coacting therewith and means to give a relativemovement longitudinally of the rotating and non-rotating cutters.

- 3. In a machine for forming owder grains or flakes, the combination,w1t feed-rolls of a plurality of rotating cutters, the cutting edges ofeach cutter being in the form of a semipolygon and the cuttin edges ofpairs of cutters eing staggered, wit respect to each other, anon-rotatable cutter, the cuttin edges being in the form of a semipolyon an means to reciprocate said non-rotata lo cutter.

evi

4. In a machine for formin powder grains or flakes, the combination,with feed-rolls of a plurality of rotating'cutters, the cutting edges ofeach cutter being in-the form of a semipolygon and the cutting edges ofpairs of cutters eing staggered, with respect to each other, anon-rotatable cutter, the cuttin edges being in the form of a semipolyon and means to give a relative movement ongitudinally of the rollsbetween the rotating and non-rotating cutters.

' 5. In a machine for forming powder grains or flakes, the combination,with feed-rolls of a plurality of rotating cutters, the cutting edges ofpairs of cutters being staggered with respect to each other, anon-rotatable cutter coacting therewith and means to move thenon-rotatable cutter with respect to the 1'0- tatin cutters.

6. In a machine for formin powder grains or flakes, the combination,with feed-rolls of a plurality of rotating cutters, the cutting edges ofpairs of cutters being staggered wit I respect to each other, anon-rotatable cutter coacting therewith and means to move thenon-rotating cutter lon itudinally of the rolls.

7. In a machine for orming owder grains or flakes, the combination, witfeed-rolls of a plurality of rotating cutters, the cutting edges of eachcutter being in the form of a semipolygori and the cutting edges ofpairs of cutters being staggered, with res ect to each other, anon-rotatable cutter, t e cuttin edges being in the form of asemipolygon an means to move the non-rotating cutter with respect to therotating cutters.

8. In a machine for formin owder grains or flakes, the combination, witfeed-rolls of a plurality of rotating cutters, the cutting edgesof eachcutter being in the form of a semipolygon and the cuttingledges of pairsof cutters being staggered, wit respect to each other, a non-rotatablecutter, the cuttin edges being in the form of a semipolygon an means to'move the non-rotating cutter longitudinally of the rolls.

9. In a machine for forming powder or flakes the combination, withfeed-r01 s of a pluralit of rotating cutters, the cutting edges 0 pairsof cutters being staggered with respect to each other, a non-rotatablecutter coacting therewith and means to .move the non-rotatable cutterwith respect to the rotating cutters, between the passage of suecessive'rotating cutters.

10, In a machine for forming owder grains or flakes, the combination,wit feedrolls of a plurality of rotating. cutters, the cutting edges ofpairs of cutters being staggered with respect to each other, anon-rotatable cutter coacting therewith, and means to move thenon-rotating cutter longitudinally of the rolls between the passage ofsuccessive rotating cutters.

ains

' of pairs of cutters being staggered, with ref 1 to'e'ach other, anonrotata a the passage of successive rotating cutters.

grains or flakes incombination, a p

I pairs being in the'form of a semi In machine for is forming owdergrains or flakes, the combination, wit feedrolls 'of a pluralityof'rotating cutters, the cutting edges of each cutter being in the form ofa. semipolygon andthe cuttmg edges of pairs of cutters being stag ered,wlth respect tin edges being in the form of a semipolygon an means tomove the non-rotatingcutter with respect to the-rotating cutters.between -1-2. In a machine for forming powder a grains or flakes, thecombination, with feedrolls of aplur'ality of rotating cutters, thecutting edges of each cutter being in the form, of a semipolygon and thecuttting edges s ect to each other, a non-rotatable cutter, the cuttingedges being in the form of a semipolygon and means to move thenon-rotating cutters longitudinally of the rolls, betweenthe passage ofsuccessive rotating cutters.

13. In a machine for forming owder grains or flakes, in combination, a puraliti. of cutters in pairs, the cuttin edges of suc pairs beingstaggered with re erence to each other and means to rotate said cutters-14.".In a machine for forming owder grains or flakes, in combination, apuralitK' of cutters in pairs, the. cutting edges of suc pairs being inthe form of a semipolygon and staggered with referenceto each other.1.5. In a machine for forming owder grains or flakes, combination, a puralit of cutters in pairs, the 'cuttin edges oisuc pairs beingstaggered with re erence to each other, means to'rotate said cutters,and a owder uralitfi of cutters in pairs, the. cutting edges ofsue v16.}In "a 'machine for forming staggered with reference to each other,and a non-rotatable cutter coacting therewith and seas-72 1e cutter, thecutgrains or flakes,in combination, a p

olygon and means to produce a. relative movement between the rotatingand the non-rotating cutters.

17. In a machine for. forming owder grams or flakes, in combination a puralit of cutters in pairs, the cutting edges of suc pairs beingstaggeredwith reference to each.

other, means to rotate said cutters, and a non-rotatable cutter coactingtherewith and means to produce a relative movement between therotatingcutters and non-rotating cutters, between the passage of successiverotating cutters.

18. In a machine for forming owder iiiralit of cutters in pairs, thecutting edges of suc pairs being inthe form of a semipolygon andstaggered with reference to each other, and a non-rotatable cuttercoacting therewith and means to produce a relative movement between therotating'cutters andnon-rotating cutter, between the passage ofsuccessive rotating cutters.

, 19. In a machine for forming powder grains or flakes, in combination,a pair of feedrolls, a source of driving power and gear connectionbetween said drivin power and said rolls for driving the same, a gedcover for said rolls, one of said gears being supported in the axis ofsaid hinge.

20. In a machine for forming owder 4 grains or flakes, in combination,wlth the feedin rolls and revolvin cutters, of a hinge cover for therolls, an a hinged cover for the cutters, one cover being hinged so asto overlie the otherand a locking device for the-overlying cover.

CHARLES DOBBS g 7 JOHN R. PITMAN. Witnesses: Y GEO. W. OoLFAx, J. W.AOK-ERMAN, Jr.

In testimony of which invention wehave .hereunto set our hands, atHaskell, New J ersey, on this 26th day of June, 1905.

